import {constantRoutes} from './router/index.js'
import router from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login', '/auth-redirect'] // no redirect whitelist

router.beforeEach(async(to, from, next) => {
  // start progress bar
  NProgress.start()

  // set page title
  document.title = getPageTitle(to.meta.title)


  // determine whether the user has logged in
  const hasToken = getToken()

  if (hasToken) {
    if (to.path === '/login') {
      // if is logged in, redirect to the home page
      next({ path: '/' })
      NProgress.done() // hack: https://github.com/PanJiaChen/vue-element-admin/pull/2939
    } else {
      const isLogin = store.getters.isLogin
      if(isLogin){
        const subsystemItem = constantRoutes.find(item => item.path === '/subsystem')
        if(to.redirectedFrom && to.redirectedFrom.includes('/subsystem')){
          if(subsystemItem.children.length === 0){
            next('/subsystem')
          }
        }
        next()
      }else{
        try{
          await store.dispatch('user/getInfo')
          const accessRoutes = await store.dispatch('permission/generateRoutes',{userId:store.getters.id})
          // const subsystemRouter = await store.dispatch('subsystem/subsystemMenus',{userId:store.getters.id})
          // console.log("数组",accessRoutes,subsystemRouter)
          // dynamically add accessible routes
          router.addRoutes(accessRoutes)
          // router.addRoutes(subsystemRouter)
          // hack method to ensure that addRoutes is complete
          // set the replace: true, so the navigation will not leave a history record
          next({ ...to, replace: true })
        }catch (error){
          // remove token and go to login page to re-login
          await store.dispatch('user/resetToken')
          Message.error(error || 'Has Error')
          next(`/login?redirect=${to.path}`)
          NProgress.done()
        }
      }
    }
  } else {
    /* has no token*/

    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next()
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      next(`/login?redirect=${to.path}`)
      NProgress.done()
    }
  }
})

router.afterEach(() => {
  // finish progress bar
  NProgress.done()
})
